An Electronics Store Receives a Shipment of Eight Boxes of Calculators

question 74

Multiple Choice

An electronics store receives a shipment of eight boxes of calculators. Each box contains ten calculators. A quality control inspector chooses a box by putting eight identical slips of paper numbered 1 to 8 into a hat, mixing thoroughly and then picking a slip at random. He then chooses a calculator at random from the box selected using a similar method with ten slips of paper in a hat.
He repeats the process until he obtains a sample of 5 calculators for quality control testing. Does this sampling plan result in a random sample? Simple random sample? Explain.

• A) No; yes. The sample is not random because not all calculators have the same chance of being selected. It is a simple random sample because all samples of 5 calculators have the same chance of being selected.
• B) Yes; no. The sample is random because all calculators have the same chance of being selected. It is not a simple random sample because some samples are not possible, such as a sample containing 5 calculators from the same box.
• C) Yes; yes. The sample is random because all calculators have the same chance of being selected. It is a simple random sample because all samples of 5 calculators have the same chance of being selected.
• D) No; no. The sample is not random because not all calculators have the same chance of being selected. It is not a simple random sample because some samples are not possible, such as a sample containing 5 calculators from the same box.

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Definitions:

Sexual Double-Standard

A set of social norms that judges or treats men and women differently for the same sexual behavior, often more permissively towards men.

Extramarital Sex

Sexual activity between a married person and someone who is not their spouse, often considered infidelity.

Emotional Satisfaction

refers to a deep sense of contentment and fulfillment derived from experiences and relationships in one's life, impacting overall well-being and happiness.

Sexual Satisfaction

the state or feeling of fulfillment or pleasure achieved through sexual activities or relationship.